1、Designation: B441 04 (Reapproved 2010)Standard Specification forCopper-Cobalt-Beryllium, Copper-Nickel-Beryllium, andCopper-Nickel-Lead-Beryllium Rod and Bar (UNS Nos.C17500, C17510, and C17465)1This standard is issued under the fixed designation B441; the number immediately following the designatio
2、n indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agenc
3、ies of the Department of Defense.1. Scope1.1 This specification establishes the requirements forcopper-cobalt-beryllium alloy (UNS No. C17500), copper-nickel-beryllium alloy (UNS No. C17510), and copper-nickel-lead-beryllium alloy (UNS No. C17465) rod and bar in straightlengths.1.2 UnitsThe values s
4、tated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units, which are provided forinformation only and are not considered standard.1.3 The following hazard statement pertains only to the testmethod portions of this specification:
5、This standard does notpurport to address all of the safety concerns, if any, associatedwith its use. It is the responsibility of the user of this standardto establish appropriate safety and health practices anddetermine the applicability of regulatory limitations prior touse.2. Referenced Documents2
6、.1 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB194 Specification for Copper-Beryllium Alloy Plate,Sheet, Strip, and Rolled BarB249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB601 Classification for
7、 Temper Designations for Copperand Copper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE1004 Test Method for Determining Electrical Conductiv-ity Using the Elec
8、tromagnetic (Eddy-Current) Method3. General Requirements3.1 The following sections of Specification B249/B249Mconstitute a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Dimensions and Permissible Variations,3.1.4 Workmanship, Finish, and Appearance,3.1.5 Sampling
9、,3.1.6 Number of Tests and Retests,3.1.7 Specimen Preparation,3.1.8 Test Methods,3.1.9 Significance of Numerical Limits,3.1.10 Inspection,3.1.11 Rejection and Rehearing,3.1.12 Certification,3.1.13 Test Report,3.1.14 Packaging and Package Marking, and3.1.15 Supplementary Requirements.3.2 In addition,
10、 when a section with a title identical to oneof those referenced in 3.1 appears in this specification, itcontains additional requirements that supplement those appear-ing in Specification B249/B249M.4. Terminology4.1 For definition of terms related to copper and copperalloys, refer to Terminology B8
11、46.5. Ordering Information5.1 Include the following information in orders for product:5.1.1 ASTM designation and year of issue,5.1.2 Copper alloy designation,1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee
12、 B05.02 on Rod,Bar, Wire, Shapes and Forgings.Current edition approved April 1, 2010. Published May 2010. Originallyapproved in 1966. Last previous edition approved in 2004 as B441 04. DOI:10.1520/B0441-04R10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Custom
13、er Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.1.3 Temper (Section 7 and Table 1 a
14、nd Table 2),5.1.4 Form of product (cross section such as round, hexago-nal, octagonal, rectangular, or square),5.1.5 Dimensions (diameter or distance between parallelsurfaces),5.1.6 Edge contours,5.1.7 Length,5.1.8 Quantity; total weight, footage or number of pieces foreach form, temper, size, and c
15、opper alloy, and5.1.9 When product is purchased for agencies of the U.S.government.5.2 The following are options available under this specifi-cation and should be included in the contract or purchase orderwhen required:5.2.1 Heat identification or traceability details (Specifica-tion B249/B249M),5.2
16、.2 Tensile strength test (9.1),5.2.3 Certification (Specification B249/B249M), and5.2.4 Mill test report (Specification B249/B249M).6. Chemical Composition6.1 The material shall conform to the compositional limitsgiven in Table 4 for the copper alloy designated in the orderinginformation.6.1.1 These
17、 composition limits do not preclude the presenceof other elements. Limits may be established and analysisrequired for unnamed elements by agreement between themanufacturer and the purchaser.6.2 Copper, listed as the “remainder” is the differencebetween the sum of results for all elements determined
18、and100 %.6.3 When all elements specified in Table 4 for the copperalloy designated in the ordering information are determined,the sum of results shall be 99.5 % min.7. Temper7.1 Tempers, as described in Classification B601, availableunder this specification are: TB00 (solution heat treated (A).TF00
19、(precipitation hardened (AT), TD04 (solution heattreated and cold worked: hard (H), and TH04 (hard andprecipitation heat treated (HT).NOTE 1Although not produced under this specification, non-standardtempers are available by special order and the properties of such productare subject to negotiation
20、between the manufacturer and the purchaser.8. Physical Property Requirements8.1 Electrical Conductivity:8.1.1 Product furnished to this specification shall conformto the electrical conductivity requirement given in Table 1 forthe applicable temper, when tested in accordance with TestMethod E1004 for
21、 product equal to and greater than38 in.(9.52 mm) in nominal diameter or distance between parallelsurfaces and other shapes having a nominal cross sectional areaexceeding 0.141 in.2(91 mm2). On product less than38 in. (9.5mm) in nominal diameter or distance between parallel surfacesand other shapes
22、having a nominal cross sectional area lessthan 0.141 in.2(91 mm2), resistivity will be measured inaccordance with Test Method B193 and converted to conduc-tivity.9. Mechanical Property Requirements9.1 Tensile test results shall be the product acceptancecriteria, when tested in accordance with Test M
23、ethods E8 forproduct equal to or less than38 in. (9.5 mm) in nominaldiameter or distance between parallel surfaces, and othershapes having a nominal cross sectional area equal to or lessthan 0.141 in.2(91 mm2).9.1.1 Tensile strength requirements are given in Table 1.9.2 Rockwell hardness is the prod
24、uct acceptance criteria,when tested in accordance with Test Methods E18 for productlarger than38 in. (9.5 mm) in nominal diameter or distancebetween parallel surfaces, and other shapes having a nominalcross sectional area larger than 0.141 in.2(91 mm2).9.2.1 The referee product rejection criteria sh
25、all be tensiletest results, when tested in accordance with Test Methods E18.9.3 The tension test will be used for qualification of allmaterial when specifically required by the purchaser, as insome government requirements.10. Precipitation Heat-Treatment10.1 The precipitation heat-treatment is perfo
26、rmed on TB00(A) and TD04 (H) tempers by the purchaser after forming.10.2 Conformance to the TF00 (AT) and TH04 (HT) speci-fication limits shown in Table 1, for products supplied in theTB00 (A) or the TD04 (H) tempers, shall be determined bytesting test specimens heat-treated at a uniform temperature
27、 of850 to 900F for the times shown in Table 2.10.3 End products may be heat-treated at other times andtemperatures for specific applications. These special combina-tions of properties such as increased ductility, dimensionalTABLE 1 Tensile Strength and Rockwell Hardness Requirements for Rod and BarA
28、Temper Designation As SuppliedStandard FormerTensileStrength,ksiB(MPaC)Rockwell Hard-ness, B ScaleElectricalConductivityIACS min, %TB00 solution heat-treated (A) 3555 (240380) 50 max 20TD04 solution heat-treated and cold-worked: hard (H) 6580 (450550) 6080 20After Precipitation Heat TreatmentTF00 pr
29、ecipitation hardened (AT) 100130 (690895)D92100 45TH04 hard and precipitation heat-treated (HT) 110140 (760965)D95102 48AThese values apply to mill products. See Section 8 for exceptions in end products.Bksi = 1000 psi.CSee Appendix.DThe upper limits in the tensile strength column are for design gui
30、dance only.B441 04 (2010)2accuracy, and endurance strength may be obtained by specialprecipitation-hardening heat treatments. The mechanical re-quirements of Table 1 do not apply to such special heattreatment. Specific test requirements as needed shall be agreedupon between the manufacturer or the s
31、upplier and the pur-chaser of the end product.10.4 TF00 (AT) and TH04 (HT) tempers as standard mill-hardened products have been precipitation heat-treated andtested by the manufacturer. An appropriate time and tempera-ture has been used to produce properties within the specifica-tion limits shown in
32、 Table 1. Table 2 does not apply. Furtherthermal treatment of these tempers is not normally required.10.5 Material may be supplied with nonstandard properties.Table 1 values would not apply. Specific test requirements asneeded shall be agreed upon between the manufacturer or thesupplier and the purc
33、haser of these end products.11. Number of Tests and Retests11.1 Retests:11.1.1 Refer to Specification B249/B249M with the follow-ing additional requirements:11.1.2 Material that fails to conform to the requirements ofthis specification due to inadequate heat-treatment may beheat-treated subsequently
34、 and submitted for test. Only twosuch subsequent treatments shall be permitted.12. Test Methods12.1 Chemical Analysis:12.1.1 The chemical composition shall be determined, incase of dispute, in accordance with the applicable method inthe Annex of Specification B194.12.1.2 The test method(s) to be fol
35、lowed for the determina-tion of element(s) resulting from contractual or purchase orderagreement shall be as agreed upon between the supplier and thepurchaser.12.2 Mechanical Property Requirements:12.2.1 In case of dispute over Rockwell hardness testresults, the rejection criteria shall be tensile t
36、est results, whentested in accordance with Test Methods E8.13. Keywords13.1 beryllium copper bar; beryllium copper rod; UNSC17500 bar; UNS C17500 rod; UNS C17510 bar; UNSC17510 rod; UNS C17465 bar; UNS C17465 rodTABLE 2 Precipitation Heat-Treatment Time for Acceptance TestsTemper Designation Copper
37、Alloy UNSNo. C17500 At900F (482C), hCopper Alloy UNSNo. C17510 At850F (454C)Aor900F (482C)A,hStandard FormerTB00 solution heat-treated (A) 3 3TD04 solution heat-treated and cold-worked: hard (H) 2 2ASpecific temperature used must conform with suppliers certification.TABLE 3 Tensile Strength and Rock
38、well Hardness Requirements for Rod and Bar (C17465)ATemper Designation As SuppliedStandard Former Tensile Strength,ksiB(MPa)CRockwell Hardness,B ScaleElectrical ConductivityIACS min, %TH04 hard and precipitation heat-treated (HT) 125145 (8601000)D95 min 44AThese values apply to mill products. See Se
39、ction 8 for exceptions in end products.Bksi = 1000 psi.CSee Appendix.DThe upper limits in the tensile strength column are for design guidance only.TABLE 4 Chemical CompositionConcentration, %ElementCopper AlloyUNS No.C17500Copper AlloyUNS No.C17510Copper AlloyUNS No.C17465Beryllium 0.40.7 0.20.6 0.1
40、50.50Cobalt 2.42.7 0.3 max .Nickel . 1.42.2 1.01.4AIron, max 0.10 0.10 0.20Aluminum, max 0.20 0.20 0.20Silicon, max 0.20 0.20 0.20Tin, max . . 0.25Zirconium, max . . 0.50Lead . . 0.200.6Copper remainder remainder remainderAIncl. Co.B441 04 (2010)3ASTM International takes no position respecting the v
41、alidity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is s
42、ubject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headq
43、uarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This stan
44、dard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).B441 04 (2010)4
